------- Comment #5 from pinskia at gmail dot com 2008-09-06 17:56 ------- Subject: Re: wrong-code on i486-linux-gnu with -O[12], -O0 works
Sent from my iPhone On Sep 6, 2008, at 10:42, "niklaus at gmail dot com" <[EMAIL PROTECTED] > wrote: > > > ------- Comment #4 from niklaus at gmail dot com 2008-09-06 17:42 > ------- > On the below version of gcc on cygwin (winXP SP3) i don't have any > problems > with optimization on or off. They produce consistent correct result. > Why is it > a problem with linux ? or am i doing something wrong. Because on x86 gnu/Linux, the precision is set to 80bits rather than 64bit like it is on windows. > > > I tried gcc -mfpmath=387 a.c -O2 and without -O2 , still the same > correct > results on both. > > Even with -ffloat-store . Is it glibc ? > > $ gcc -v > Reading specs from /usr/lib/gcc/i686-pc-cygwin/3.4.4/specs > Configured with: /usr/build/package/orig/test.respin/gcc-3.4.4-3/ > configure > --verbose --prefix=/usr - > -exec-prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --libexecdir=/ > usr/lib > --mandir=/usr/share/man > --infodir=/usr/share/info --enable-languages=c,ada,c+ > +,d,f77,pascal,java,objc > --enable-nls --without > -included-gettext --enable-version-specific-runtime-libs --without-x > --enable-libgcj --disable-java- > awt --with-system-zlib --enable-interpreter --disable-libgcj-debug > --enable-threads=posix --enable-j > ava-gc=boehm --disable-win32-registry --enable-sjlj-exceptions > --enable-hash-synchronization --enabl > e-libstdcxx-debug > Thread model: posix > gcc version 3.4.4 (cygming special, gdc 0.12, using dmd 0.125) > > $ > > > -- > > niklaus at gmail dot com changed: > > What |Removed |Added > --- > --- > ---------------------------------------------------------------------- > CC| |niklaus at gmail dot > com > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37390 > -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37390
